[Kybosh]

When I first started getting into cycling as an adult, I went through two cheap online vendor bikes first. I very very quickly "outgrew" them though as the ride quality, speed, weight etc. was so far below even a base model from a LBS. I recommend just paying more from the start and getting something that you'll enjoy riding and won't have crappy components. It'll save you money in the long run to buy the bike you want from the very beginning.

I currently have a road bike, mountain bike, and a cheap single speed for breweries and such. I would really love to get a new single speed from Bike & Brew but it's definitely not necessary haha.